Quick answers
- Which hospitals does Robert W. Horowitz work at?
- Medicare's official clinician data lists Robert W. Horowitz at 3 hospitals: Cayuga Medical Center at Ithaca, Guthrie Cortland Regional Medical Center and Schuyler Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert W. Horowitz see patients?
- Medicare's clinician data lists 2 practice locations, including Ithaca, NY and Cortland, NY. Call before your visit to confirm the address.
- What is Robert W. Horowitz's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Internal Medicine.
- Does Robert W. Horowitz accept Medicare assignment?
- Yes. Medicare's clinician data says Robert W. Horowitz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Robert W. Horowitz offer telehealth?
- Medicare's clinician data says Robert W. Horowitz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert W. Horowitz?
- (607) 274-4443, as listed in official Medicare / NPI Registry data.
- What is Robert W. Horowitz's NPI number?
- 1578667960. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert W. Horowitz works
Medicare's Facility Affiliation Data lists Robert W. Horowitz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cayuga Medical Center at IthacaIthaca, NY · Acute Care Hospital · CCN 330307
- Guthrie Cortland Regional Medical CenterCortland, NY · Acute Care Hospital · CCN 330175
- Schuyler HospitalMontour Falls, NY · Critical Access Hospital · CCN 331313
Practice locations
Addresses where Robert W. Horowitz is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Dates DrIthaca, NY 14850 (607) 274‑4443
- 1081 Commons AveCortland, NY 13045 (607) 272‑5414
Group practices
Medicare enrollment lists Robert W. Horowitz as a member of these groups (CMS data updated 2026-10-02).
- Cayuga Medical Associates PC282 clinicians in the group
- Cayuga Medical Center at Ithaca31 clinicians in the group
Specialties
- Medical Oncologyprimary
- Internal Medicinealso
Other oncologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578667960 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians